Improvement in lamps



THGMAS H. MOTT..

Lamp.A 4 y Patented Apri! 23,1872.

UNITED STATES THOMAS H. MOTT, OF NEW YORK, N. Y.

IMPROVEMENT IN LAMPS.

Specication forming part of Letters Patent No. 126,075, dated April 23, 1872.

Specifica-tion describing certain Improvements in Lamps and Chandeliers, the invention of THOMAS H. MOTT, of the city, county, and State of New York.

This invention, which relates to students and other lamps, applicable also in part to chandeliers, consists in a longitudinally-divided construction of the bracket or brackets which unite the body or supply-chamber vwith the wick-tube or burner, in 'combination with a tube or tubes incased by said bracket or brackets for conveying the oil or fluid to be burned. This construction reduces the number of joints, and dispenses with much soldering. Such longitudinally-divided bracket is also circumferentially divided at its eye or socket in such manner that the one section of the divided bracket is of a whole or ring construction a-t such part to facilitate attachment of the bracket by a side screw or screws to a stand or stem without springing the longitudinally-divided sections apart. The invention also relates to detachable oil-reservoirs made of glass and operating by inversion to feed the lamp through a valve connected with the cork or stopper of said reservoir; and the improvement in respect to this device consists in a cupshaped construction of the mouth of the reservoir beyond the cork or stopper when in its place to catch any surplus oil in filling; also, in an air-escape through the cork or stopper to facilitate filling with the cork in its place and valve open.

In the accompanying drawing, which forms part of this specification, Figure 1 represents a vertical longitudinal section of a students lamp having my invention applied to it; Fig. 2, a transversely-sectional elevation of the same 5 Fig. 3, a horizontal section at the line w Fig. 4, a sectional view at the line y y, showing the joint inthe eye or socket of the bracket; and Fig. 5, a sectional view of the detachable reservoir in position for filling.

Similar letters of reference indicate corresponding parts throughout the several figures of the drawing.

A is the stem or stand of the lamp, on which the reservoir or holder B containing the reservoir, attached brackets C C', and wick-tube or holder D, are adjustable up or down and held in position by a side screw, E, in the eye or socket of the bracket. The connection for conveying the oil from the holder B to the wicktube D is by a simple plain piece of tubing, b, which is bent to pass around the stem of the stand, and is incased by the bracket C C'. This bracket may be cast of any ornamental configuration desired, and is divided longitudinally in avertical direction so as to facilitate its attachment and reception of the feedingtube b, such division extending throughout the length of the bracket, including a forward socket-like portion, c c, for holding the wicktube D, when the two sections C G of the bracket are united by screws d d and e e. These last-mentioned screws c e also pass through one or more projections, f, on the base of the reservoir-holder B to attach the bracket to the latter. By means of this sectional construction of the bracket certain joints and the usual soldering are saved in making the connection between the holders B and D for transmission of the oil. Alike construction may be applied to chandeliers and to lamps havin gtwoor more arms or brackets with wick-tubes attached. The bracket C C' is furthermore divided circumferentially or horizontally at its eye or sliding socket by making the one section, C, with a whole portion, g, to encircle the stem upon which the socket slides, and so that the other section, C, is received within or on said whole portion. By this construction, and by the insertion of the screw E through the bracket section C', the two sections ofthe bracket are kept from being strained or from springing apart when turning the screw E to bind upon the stem. Furthermore, either one bracket section at its back end-where, for instance, it iits over the end of the other section--is provided with a lug or pin, h, Awhereby the lamp may be converted from a standing one to a bracket-lamp. G is the detachable reservoir, made of glass, and similar in its main features and general principle of action to other reservoirs used in students lamps, being provided with a tubular cork or stopper, c', which is fitted with a valve, It, that closes when the reservoir is inverted and out of the lamp, but which is opened by being brought in contact with the bottom of the holder B when the inverted reservoir is in its place in the lamp to supply the wick-tube with oil, and which valve also opens when the reservoir stands with its mouth uppermost for filling. But in such deconstructed with a circumferential division at its eye or socket so as to form a Whole portion, g, in combination with the screw E and stem or stand A, essentially as described.

3. The combination of the projecting cup m around the mouth of the detachable reservoir G with the tubular stem l of the valve k, essentially as described.

THOMAS H. M OT'l.

Witnesses FRED. HAYNES, SYDNEY E. SMITH. 

